[TYPO3-mvc] Setting storagePid for Extbase Plugins

[David Schreiber]

Hello Everybody,

I have inserted one of my Extbase-driven plugins via Typoscript with
this snipped of code:

lib.leftcol = COA
lib.leftcol.10 < tt_content.list.20.myplugin

This worked until now. I need the plugin to access my persistence
repositories to display some data.

Since the plugin is placed via TS, I need to set the plugins
storagePid by TS as well. How can I do so?

This won't work:

lib.leftcol.10.persistence.storagePid = 1

Any other ideas?

Help would appreciated,
David Schreiber